This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Some Haifa scheduler bugs
- To: Bernd Schmidt <crux at Pool dot Informatik dot RWTH-Aachen dot DE>
- Subject: Re: Some Haifa scheduler bugs
- From: Jeffrey A Law <law at hurl dot cygnus dot com>
- Date: Wed, 03 Sep 1997 11:07:02 -0600
- cc: egcs at cygnus dot com
- Reply-To: law at cygnus dot com
In message <Pine.SOL.3.90.970903184242.6496A-100000@bond.informatik.rwth-aachen.de>you write:
> How can reload generate incorrect code in this case except if the lifetime
> of a hard register gets extended by the scheduler or some other optimizer?
When loading of an argument register requires a reload, which may force
reload to clobber a previously loaded argument register.
jeff